I too just was caught with this issue.
Here in America, I Favorited Kate Bush’s 2018 Rhino Releases. After they never showed up in Roon, I thought I would try to “Add Them To My Library” from within Roon, only to not be able to find them at all from within the Roon app.
Returning to the Qobuz app, I noticed that the little “Hi Rez” icon on thos albums had the tiny descriptor “Available In” just above it, and when I clicked Play, only an MP3 stream played , with only a snippet of each track.
So… that’s why it’s not in Roon

Hi @Krutsch,
We looked into this and found that this album and other new Qobuz releases were indeed missing from Roon. We investigated this issue with Qobuz and believe that things should now be resolved. You have our apologies for the inconvenience here.